posted by shana .
What is one mole of H2O composed of?
A. 2 hydrogen atoms and 1 oxygen atom
B. 2 × (6.02 × 1023) hydrogen atoms and 6.02 ×1023 oxygen atoms
C. 3 atoms of water and 2 oxygen molecules
D. one half of a molecule of peroxide
I say A
a mole is 6.02*10^23 molecules.
A is one molecule
B is one mole